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https://issues.apache.org/jira/browse/NIFI-8537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Payne updated NIFI-8537:
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Status: Patch Available (was: Open)
> Components become invalid if referencing a disabled controller service, even
> if referencing property is not in scope due to dependencies
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-8537
> URL: https://issues.apache.org/jira/browse/NIFI-8537
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> If a processor/controller service property (A) has a dependency on another
> property (B), we do not perform validation of property A (i.e., the property
> descriptor's validator is ignored). However, if Property A references a
> Controller Service, and that Controller Service is either disabled or
> invalid, we currently consider the referencing component invalid. This should
> not be the case.
> To replicate:
> * Create an AvroSchemaRegistry Controller Service. Leave the Controller
> Service disabled.
> * Create a JsonTreeReader controller service.
> * Configure the JsonTreeReader Controller Service.
> * Set "Schema Access Strategy" to "Use 'Schema Name' Property"
> * Set "Schema Registry" to the AvroSchemaRegistry created in the first step.
> * Change "Schema Access Strategy" to "Infer Schema"
> * Click Apply to apply the changes.
> The JsonTreeReader service will be invalid due to the fact that
> AvroSchemaRegistry is disabled. Not only should the Schema Registry property
> not be considered in validation, it becomes very confusing now because the
> validation error states: "'Schema Registry' validated against XYZ is invalid
> because Controller Service with ID XYZ is invalid." But when configuring
> JsonTreeReader, we don't even see the "Schema Registry" property.
> The reference should not be validated unless its property's dependencies have
> been satisfied.
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